The Vimeo Node.js Library by Vimeo allows developers to integrate the Vimeo API's functions into their Node.js applications. Documentation is provided, including code examples. This is an official library.
Agora.io has launched an Agora Interactive Broadcasting API developers can use to add real-time interactive broadcasting capabilities to web and mobile applications. Agora Interactive Broadcasting supports up to 7 active speakers and 10,000 participants, and is available via the Agora SDK.
Apple recently announced a new API that allows third party websites and apps to embed Live Photos. Live Photos has been around since 2015; however, embedding Live Photos outside of a Mac or iOS environment has been somewhat challenging to date. The Live Photos API should alleviate that difficulty.